Not true in general. For example, a system that yields 1% false negatives and 1% false positives is still 98% reliable, and much better than random guessing.
That law, as questionable as it is, doesn't criminalize anything retroactively. It just imposes certain registration requirements on certain individuals, that must be carried out after the law was passed. As such, it would probably pass constitution muster, at least as far as the clause you quoted was concerned. (But then again, I'm not a lawyer, so this is just a personal opinion and not a legal one.)
It is the retailer's choice to offer a "no questions asked" return policy. It is irrelevant that many customers abuse such a policy. When the store offers such a policy, it assumes the all risks involved because of "no questions asked". It is unethical (and also illegal) for them to pawn off that risk on unsuspecting customers who are paying full retail price and expecting new products.
What they should have done is to refurbish the goods (add new shrink-wrap, reformat memory sticks and hard drives, reset phones to factory defaults, etc.) and offer them for sale as-is at a discount. That they didn't even try to refurbish media before re-selling it as new shows that not only are they unscrupulous, they're also stupid.
Yes but they still suck with visualization however well the card is supported. You can play graphics intensive games if you're willing to drop the resolution. Personally I don't mind going to bootcamp for playing games - its a 10-20 second reboot.
Actually, there are nut-cases who have risen to lead nations. Hitler was one. There were a number of them in the Eastern European countries during the cold war. The theocracy running Iran is another.
This looks like an application specific front end (with compass) like APRS works for ham radio.
See aprs.fi and enter the call sign of a ham radio equipped with a GPS (like the Yaesu VX-8R).
It just opens the door to anyone and maybe adds a friends list.